From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96C9CC4338F for ; Tue, 24 Aug 2021 15:53:48 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 16B2F611C9 for ; Tue, 24 Aug 2021 15:53:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 16B2F611C9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 93A8F4B12A; Tue, 24 Aug 2021 11:53:47 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xcYuUgRG-U40; Tue, 24 Aug 2021 11:53:42 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D7FAD4B1C1; Tue, 24 Aug 2021 11:53:42 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 846224B102 for ; Tue, 24 Aug 2021 11:53:41 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vjilKjbRDcAO for ; Tue, 24 Aug 2021 11:53:40 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 623E540573 for ; Tue, 24 Aug 2021 11:53:40 -0400 (EDT) Received: by mail.kernel.org (Postfix) with ESMTPSA id BD745611C8; Tue, 24 Aug 2021 15:53:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629820419; bh=S/+dn5ZBf/rML65m4XV8wU/VMONHlR/+MQQqXYZkqgU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KfeVCFFuBeoTUCsw1Kix4Dpc+24YZ5NVlYR4yZmIinQnDASuOVIebwHtoHFWpQUua 7FDKLN5cH+BfWhcZhUfdQs5D6iJbwxoUG0Hm3NMJ9NWDOffP6TFS3QCmjNlKjF/Txa AQYc0JOG1uNyumVsXjynz9dRpi3yPM8UFp/y2bcUnNbeCxxmN3e92Rsmzd82ip1FkT qjxctXTRKKRsSHnGgJ1o+Oxgq21ggtz99A1CSUx2Oz93ju7y8aRymaulMgFe69CAGv 4PB/FpmIR3cCiM5OMxBZg4tewwZXZ3dT6sAmSXbJvvzyktqRGvzmKYATQvVkdF4YJs 7/NggtmaC1K1w== Date: Tue, 24 Aug 2021 16:53:12 +0100 From: Mark Brown To: Alexandru Elisei Subject: Re: [PATCH v2] arm64: Do not trap PMSNEVFR_EL1 Message-ID: <20210824155312.GD4393@sirena.org.uk> References: <20210824154523.906270-1-alexandru.elisei@arm.com> MIME-Version: 1.0 In-Reply-To: <20210824154523.906270-1-alexandru.elisei@arm.com> X-Cookie: Sentient plasmoids are a gas. User-Agent: Mutt/1.10.1 (2018-07-13) Cc: catalin.marinas@arm.com, maz@kernel.org, will@kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5568593222932336109==" Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu --===============5568593222932336109== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="GyRA7555PLgSTuth" Content-Disposition: inline --GyRA7555PLgSTuth Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Aug 24, 2021 at 04:45:23PM +0100, Alexandru Elisei wrote: > Commit 31c00d2aeaa2 ("arm64: Disable fine grained traps on boot") zeroed > the fine grained trap registers to prevent unwanted register traps from > occuring. However, for the PMSNEVFR_EL1 register, the corresponding > HDFG{R,W}TR_EL2.nPMSNEVFR_EL1 fields must be 1 to disable trapping. Set > both fields to 1 if FEAT_SPEv1p2 is detected to disable read and write > traps. Reviewed-by: Mark Brown --GyRA7555PLgSTuth Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmElFecACgkQJNaLcl1U h9CEkAf/aKONR9MrgUCx5/TwTo/XLS84ZwikykFHKlvZAE7ttsl0qmqxnOMkW8E3 DACgUHB+eqDA9eXbF0KDo3fj9T12aBKRm4NafiepudpKpPKyP5D/2YACB4jbUAP/ Ov+nLv2IzSd8VmqTjzX70C81XFzsAh9pbkdLJp3qPOCSX30b0Zg1J07TfCOUiPH0 yIJjlcqEsPcq+eRJT3AHaik017fbSjl9Kk+mV/BEz1m+hfaexCcXR8poNQFmxghp KIsdEW8M25qW+JKbFU1+WQIIh8dAPWl8R1rzZWbY7YOO+2ExawRZ3PjedYoAgpOb Zzkh8t0pygHbOgfPYr+hpNwrbn3ZfA== =cXNj -----END PGP SIGNATURE----- --GyRA7555PLgSTuth-- --===============5568593222932336109== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm --===============5568593222932336109==--